// pages/storeBuyNow/storeBuyNow.js
const app = getApp();
import api from '../../../utils/util.js';
Page({

  /**
   * 页面的初始数据
   */
  data: {
    statusBarHeight: app.globalData.statusBarHeight,
    fullHeight: app.globalData.fullcontain,
    discount: app.globalData.discount,
    navmess:{
      navtitle: "购物车",
      backhide: 0,
      topheight: 1
    },
    count: 0,   //合计
    number: 0,  //件数
    allSelect: false,
    selectIds: [] //结算ids
  },
  pageto: function(e){
    var url = e.currentTarget.dataset.url,
        data = e.currentTarget.dataset.datobj;
    app.goto(url,data);
  },
  // 减少
  bindMinus: function (e) {
    var index = parseInt(e.currentTarget.dataset.index),
        quantity = this.data.demolist[index].quantity,
        id = e.currentTarget.dataset.id;
    var demolist = this.data.demolist;
    if (demolist[index].seckillId !== null) {
      var price = demolist[index].seckillPrice
    } else {
      var price = demolist[index].price
    }
    if(demolist[index].selected && quantity>0){
      quantity--;
      this.setData({
        count: this.data.count - 1 * price,
        number: this.data.number - 1
      });
    }else if(quantity>0){
      quantity--;
    }
    demolist[index].quantity = quantity;
    this.setData({
      demolist: demolist
    });
    var params = {
      "token": this.data.token,
      "id": id,
      "quantity": quantity
    }
    api.post("/mini/my/cart/modifyCart",params).then(res =>{
      if (res.code == 200) {
          
      }
    }).catch(res => {
      console.log("请求失败：",res);
      return false;
    })
  },
  // 增加
  bindPlus: function (e) {
    var index = parseInt(e.currentTarget.dataset.index),
        quantity = this.data.demolist[index].quantity,
        id = e.currentTarget.dataset.id;
    var demolist = this.data.demolist;
    if (demolist[index].seckillId !== null) {
      var price = demolist[index].seckillPrice
    } else {
      var price = demolist[index].price
    }
    if(demolist[index].selected){
      quantity++;
      this.setData({
        count: this.data.count + 1 * price,
        number: this.data.number + 1
      });
    }else{
      quantity++;
    }
    demolist[index].quantity = quantity;
    this.setData({
      demolist: demolist
    });
    var params = {
      "token": this.data.token,
      "id": id,
      "quantity": quantity
    }
    api.post("/mini/my/cart/modifyCart",params).then(res =>{
      if (res.code == 200) {
          
      }
    }).catch(res => {
      console.log("请求失败：",res);
      return false;
    })
  },
  // 勾选
  bindCheckbox: function (e) {
    var index = parseInt(e.currentTarget.dataset.index), 
        selected = this.data.demolist[index].selected,
        quantity = parseInt(this.data.demolist[index].quantity),
        price = this.data.demolist[index].price,
        selectIds = this.data.selectIds;
    var demolist = this.data.demolist;
        demolist[index].selected = !selected;
    this.setData({
      demolist: demolist
    });
    if (!selected) {
      this.setData({
        count: this.data.count + quantity * price,
        number: this.data.number + quantity 
      });
      // 需要结算的商品
      selectIds.push(e.currentTarget.dataset.id);
    } else {
      this.setData({
        count: this.data.count - quantity * price,
        number: this.data.number - quantity
      });
      for(var i = 0;i<selectIds.length;i++){
        if(e.currentTarget.dataset.id == selectIds[i]){
          selectIds.splice(i,1)
        }
      }
    }
    console.log(selectIds);
    // 检测全选
    console.log("全选",this.checkisall())
    if(this.checkisall()){
      this.setData({
        allSelect: true
      })
    }else{
      this.setData({
        allSelect: false
      })
    }
  },
  // 全选
  bindSelectAll: function () {
    var that = this;
    that.setData({
      allSelect: !that.data.allSelect
    })
    var demolist = that.data.demolist,
        count,number,
        selectIds = [];

    if (that.data.allSelect) {
      count = 0;number = 0;
      for (var i = 0; i < demolist.length; i++) {
        var quantity = parseInt(that.data.demolist[i].quantity),
            price = that.data.demolist[i].price;
          if(!demolist[i].selected){
              demolist[i].selected = true;
          }
          number += quantity;
          count += quantity * price;
      }
      // 需要结算的商品
      for(var i = 0; i < demolist.length; i++) {
        selectIds.push(demolist[i].id);
      }
    }else{
      count = 0;number = 0;
      for (var i = 0; i < demolist.length; i++) {
          if(demolist[i].selected){
              demolist[i].selected = false;
          }
      }
      selectIds = []
    }
    that.setData({
      demolist: demolist,
      count: count,
      number: number,
      selectIds: selectIds
    })
    console.log(selectIds)
  },
  // 检测全选功能
  checkisall: function(){
    var demolist = this.data.demolist,
        res = true;
    for (var i = 0; i < demolist.length; i++) {
        if(!demolist[i].selected){
          res = false;
        }
    }
    return res
  },

  //手指触摸动作开始 记录起点X坐标
  touchstart: function(e) {
    //开始触摸时 重置所有删除
    let data = app.touch._touchstart(e, this.data.demolist)
    this.setData({
      demolist: data
    })
  },
  //滑动事件处理
  touchmove: function(e) {
    let data = app.touch._touchmove(e, this.data.demolist)
    this.setData({
      demolist: data
    })
  },
  //删除
  del: function(e) {
    var that = this,
        index = parseInt(e.currentTarget.dataset.index), 
        id = e.currentTarget.dataset.id,
        selected = this.data.demolist[index].selected,
        quantity = parseInt(this.data.demolist[index].quantity),
        price = this.data.demolist[index].price;
    wx.showModal({
      title: '提示',
      content: '确认要删除此条信息么？',
      success: function(res) {
        if (res.confirm) {
          console.log('用户点击确定')
          that.data.demolist.splice(e.currentTarget.dataset.index, 1)
          if(selected){
            that.setData({
              demolist: that.data.demolist,
              count: that.data.count - quantity * price,
              number: that.data.number - quantity
            })
          }
          var params = {
            "token": that.data.token,
            "id": id
          }
          api.post("/mini/my/cart/delCart",params).then(res =>{
            if (res.code == 200) {
                
            }
          }).catch(res => {
            console.log("请求失败：",res);
            return false;
          })
        } else if (res.cancel) {
          console.log('用户点击取消')
        }
      }
    })
    
  },
  // 结算传参
  settle: function(){
    var notNone = false,
        demolist = this.data.demolist;
    for(var i = 0;i< demolist.length;i++){
      if(demolist[i].selected){
        notNone = true
      }
    }
    if(!notNone){
      wx.showToast({
        title: '请选择结算商品',
        icon: 'none',
        duration: 1500
      })
    }else{
      wx.navigateTo({
        url: "../storeOrderInfo/storeOrderInfo" + "?selectIds=" + JSON.stringify(this.data.selectIds.join(',')),
      })
    }
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
    var that =this;
    var token = wx.getStorageSync('token');
    that.setData({
      token: token,
      allSelect: false,
      count: 0,
      number: 0,
      selectIds: []
    })
    api.post("/mini/my/cart/cart",{
      "token": token
    }).then(res =>{
      if (res.code == 200) {
        console.log(res)
        that.setData({
          demolist: res.result.cartList
        })
      }
    }).catch(res => {
      console.log("请求失败：",res);
      return false;
    })
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareappMessage: function () {

  }
})